Planer and attachments therefor



Oct. 4, 1960 R. A. BUTTKE PLANER AND ATTACHMENTS THEREFOR Original FiledOct. 8, 1951 2 Sheets-Sheet 1 INVENTOR Rum/m0 A. BUTTKE.

ATTORNEYS Oct. 4, 1960 R. A. BUTTKE 2,955,007

PLANER AND ATTACHMENTS THEREFOR Original Filed Oct. 8, 1951 2Sheets-Sheet 2 F1 7. 4 INVENTOR i 43 RICHARD. A. BUTTKE l/M, 7% W ATI'ORNEHZS States Claims. (Cl. 312-564;

The present invention relates to improvements in woodworking machineryandmore particularly to improvements in the construction and structuralarrangement of wood planing machines; This application is a; division ofapplicants application Serial Number 250,345, filed October 8,- 1951;and now Patent No; 2,792,036.

An important object of this invention is the provision of a rigid,enclosed support base cabinet which is economical to manufacture andprovides a firm; easily adjustable motor mount for the planar drivemotor and asubstantially dustproof housing for the" drive motor toprevent theaccumulation of wood dust and chips thereon.

This and other objects of this invention will become more fully apparentby reference to the appended claims and the following-detaileddescription when read in connection with the accompanying drawings,wherein like reference numerals designate like parts and:

Figure 1 is a perspective view of an improved planer embodying theprinciples of my present invention;

Figure 2 is a plain view of the cabinet ,ty'pe base structure' of myimproved planer being in effect a horizontal section taken along the1ine.2-'2 of Figure 3;

Figure 3 is a partially sectioned front elevation view of the basestructure of the planer of Figure 1; and Figure 4 is a fragmentary rightside view of the planer base structure showing the adjustable drivemotor mount.-

The general structural arrangement of the improved planer of thepresentinvention is shown in Figure 1;

This improved planer comprises a; main base casting 20 from the oppositeends of which a pair of spaced columns 22 and 24 project upwardly;Columu 22' is generally hollow in form and consists of three castings25, 26 and 27, casting 25 being fixed to the base cast ing 20 andcastings 26 and 27 being fixed to casting 25. Column 24' isalsogenerally ho'liow in form and consists of a single casting 28, beingfixed to the base casting 20. Base casting 20 rests upon a cabinet type,enclosed support structure 30 within which the planer drive motor ismounted. it v p A power driven cutter head an" poser driven parallelfeed rolls extend between and are mounted for rotation at their ends oncolumns 22 and 24 near the top thereof. Below these feed rolls and thiscutter head, which are not visible in Figure 1, a. work su ort table 32,having a horizontal p'laiiar work support surface 34, extends betweenand is guided on columns 22 and 24 for limited translatory movement upand down between the columns '22 and 24 for adjusting the machine toaccommodate pieces of lumber of different thicknesses. Verticaladjustment of table 32 is effected by a raising and lowering mechanismoperated by manipulation of a handwheel 38 on the left side of the basecasting 24}. The position of the table 32 relative to the cutter head isindicated by the ooaction of a pointer 40 fixed to the table 32 with ascale 42 fixed to column 22 parallel to the path of movement of table 32.

to a pivot shaft 4'6 projecting from the casting 27 ofcolumn 22.

The detailed structure of the foregoing parts of this improved planerwill now be described in detail.

Cabinet type support structure and motor mount Referring firstto Figures2, 3, and 4 thesupport structure 30, upon which the base casting 20 ismounted, is provided at its four corners with legs 48. Each leg 48 hasan arcuate wall 50 (Figure 2),- a bottom end wall 52 formed in'tegr'allyon the inside of wall 50, and a top end wall 54, integrally formed onthe inside of wall 50 at its upper end (Figure 3);

The front and rear side legs 48 are connected at their bottom ends by atie bar 56, which is conveniently formed of angle iron. Tie bar 56 isrigidly secured at its respective ends to bottom end walls 52 of rightfront leg 48 and of right rear leg 48 by means of screws 58, which arethreaded into the bottom end walls 52. The front and rear left-hand legs48 are rigidly connected in the same manner by a similar tie bar 60.

Tie bars 56 and 60 are rigidly interconnected by means of front and reartie rods 62 and 64.- The tie rods 62 and 64 are rigidly connected attheir ends to the vertical sides of tie bars" 56 and 60 by screws 66 and67 respectively. The four legs 48, the two tie bars 56 and 60 and thefront and rear tie rods 62 and 64 are thus all rigidly connectedtogether to form the skeleton frame upon which the base casting 20 ofthe planer is mounted.

The front and rear sides of support structure 30 consist of panels 68and 69 preferably formed of sheet steel secured respectively between thetwo front and the two rear legs 48 by screws 70 threaded into ears 7115flegs 48 asshown in Figures 2 and 3.

73 and 74 se'c'ured respectively between the two right and the two leftside legs 48 by screws 75 threaded into ears 76 of legsy'iS; y

The planer drive motor, designated 78; is supported within the cabinet30 upon an improved motor mount which permits e'asy adjustment of thedrive belt tension by raising or lowering the motor and also lateraladjust merit of the motor. A sleeve 81 is rotatably received Oil reartie rod 64' and is secured thereon against longi-i tudinal movementbetween a pair of collars 82 and 84 fixed to tie r'o'd 64 by set screws85. The motor 78 is fixed to and" supported by two brackets 86 and 88which are of like longitudinal configurationbest shown in Figure 4. Therear ends of brackets 86 and 88 are secured to sleeve 8-0 as by weldingas shown in Figure 2. A cross bar 90 is secured Between the upwardlyoffset fhrwar d portions "of brackets 86' and 88 by bolts 92. A pair ofeye bolts 9'4'and 96' are loosely received on front tie rod 62 andformed with threaded shanks 97 and 98 respectively, which pass upwardlyfreely through aligned holes in the ends of cross bar 90. The cross bar90 is held in vertical position relative to the shanks 97 and 98 of eyebolts 94 and 96 between lower nuts 99 and upper nuts 100 threadedlyengaged with the shanks 97 and 98.

The motor 78, being rigidly mounted on the brackets 86 and 88, will movepivotally about the axis of tie rod 64 with these brackets. The shaft102 of motor 78 may Patented Oct. 4," 1960 The right and left sides ofsupport structure 36 consist of sheet steel panels be adjustedvertically to either tighten or loosen the drive on by the cooperativeadjustment of the nuts 99 and 100 on each of the eye bolts.

- The motor 78 may also be moved laterally by loosening the'set screws85 of collars 82 and 84 and moving the motor 78 and sleeve 80 axiallyalong the tie rods 62"and 64. This adjustment permits the use of varioussizes of motors and makes it possible to vertically align the motorpulley 106 with the pulley on the cutter head.

As shown in Figure 3, the base casting 20 of the planer proper ismounted on this support structure 30 formed by the legs 48 and the frontand rear panels 68 and 69 and the side panels 73 and 74 by a bolt 108 ateach corner passing through a hole in the upper end wall 54 of each leg48 and threaded into an aligned threaded hole in the base 20.

The invention may be embodied inother specific forms without departingfrom the spirit or essential characteristics thereof. The presentembodiment is therefore to be considered in all respects as illustrativeand not re strictive, the scope of the invention being indicated by theappended claims rather than by the foreoging description, and allchanges which come within the meaning and range of equivalency of theclaims are therefore intended to be embraced therein.

' What is claimed and desired to be secured by United States LettersPatent is: j

l. A support cabinet for a woodworking machine, comprising a pair ofspaced parallel, cylindrical shafts of substantially equal length; atransversely extending tie bar rigidly fixed to the adjacent ends ofsaid shafts at each of their ends; a corner legtcasting fixed adjacentits lower end to each end of each of said tie bars and extending normalto the longitudinal axis thereof; a cove'r panel secured between eachadjacent pair of said corner castings; a pair of cross bars extendingbetween said shafts; means fixed to adjacent ends of said cross bars-formounting said cross bars for conjoint pivotal movement about and axialmovement along one of said shafts; a pair of eye-bolts each slidablyassociated with the other of said shafts with their shank portionsprojecting upwardly therefrom; means for adjustably secur ing the otheradjacent ends of said respective cross bars fixedly to said respectiveeye bolt shank portions; and means on said one shaft for fixing theaxial position of means pivotally, and slidably associatedwith, theother of said cross bar mounting means relative to said one shaft.

2. A support cabinet for a woodworking machine, comprising a pair ofspaced parallel, cylindrical shafts of substantially equal length; atransversely extending tie bar rigidly fixed to the adjacent ends ofsaid shafts at each of their ends; a corner leg casting fixed adjacentits lower endto each end of each of said tie bars and extending normalto the longitudinal axis thereof; a motor support structure pivotallyand axially adjustably mounted on one of said shafts and adjustablyconnected to-the other of said shafts and pivotal movement relativethereto; means for locking the adjustable connection 7 member fixedadjacent its lower end to each end of each of said tie bars andextending normal to the longitudinal axis thereof; a cover panel securedbetween each adjacent pair of said corner leg-members; a pair of crossbars extending between said first pair of bars; means fixed to adjacentends ofsaid cross bars for mounting said cross bars for conjoint pivotalmovement about and axial'movement along. one of said first'pair vofbars;

said first pair of bars and having portions projecting upwardlytherefrom; means for adjustably securing the other adjacent ends of saidrespective cross bars fixedly to said upwardly projectingtportions; andmeans on said one of said first pair of bars for fixing the axialposition of saidcross ba'r mounting means relative to said one of saidfirst pair of bars. 5 i

4. A base fora machinetool comprising a first pair of spaced parallelbars of substantially equal length; a transverselyextending tie-barrigidly'fixed to said first pair of bars at each of their adjacent endsto define therewith a rigid frame; said first pair of bars constitutingthe sole direct structural connection between said tie bars, anupstanding corner leg member fixed adjacent its lower end to each cornerof said frame; a pair of cross bars extending between said first'pair ofbars; means fixed to adjacent ends of said cross bars for mounting saidcross bars for conjoint pivotal movement about and axial movement alongone of said first pair of bars; means pivotally and slidably associatedwith the other of said first pair of bars and having at least oneportion projecting upwardly, therefrom, means adjustably securing theother adjacent endsof said respective cross bars fixedly to saidupwardly projecting portion; and means for fixing the axial position ofsaid cross bar mounting means relative to said one of said first pair ofbars.

5. A support cabinet for a machine tool comprising a pair of spacedparallel cylindrical shafts of substantially equal length; atransversely extending tie bar rigidly fixed tosaid shaft at each oftheir adjacent ends to define a rigid frame; an upstanding corner legmember fixed adjacent its lower end to each corner of said frame; a pairof cross bars extending between said-shafts; means fixed to adjacentends of said cross bars for mounting said cross bars for conjointpivotal movement about and axial movement along one of said shafts; atleast one eye bolt slidably associated with the other of said shaftswith its shanked portion projecting upwardly therefrom; means foradjustably securing the other adjacent ends of said respective crossbars fixedly to said tie bolt shank portion; and means on said one shaftfor fixing the axial position of said cross bar mounting means relativeto said one shaft.

References Cited in the file of this patent UNITED STATES PATENTS OTHERREFERENCES Duro Metal Products Co, Chicago, 11]., Catalog E- 37B, Motorbase and motor mounting, page 3; and band saw stand, page 30; May 1945.

